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F. H. PIERPONT LOW QUAD MECHANISM FOR TYPE MACHINES.

APPLICATION FILED JAN. 9 1914.

Patented Aug. 1, 1916.

3 SHEETS-SHEET l- F. H. PIEHPONT.

LOW QUAD MECHANISM FOR TYPE MACHINES.

APPLICATION mu) mp9. 1914.

l ,1 93,420. Patented Aug. 1,1916.

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F. H. PIERPONT.

LOW QUAD MECHANISM FOR TYPE MACHINES.

APPLICATION FILED JAN. 9. 19M.

Patented Aug. 1, 1916.

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BEAN K HINMAN PIERPONT, OF HORLEY, ENGLAND, ASSIGNOR T9 LAN$TONIVIONO'IYPE MACHINE COMPANY, 01? PHILADELPHIA, PENNSYLVANIA, ACORPORATION OF VIRGINIA.

LOW-QUAD MECHANISM FOR TYPE-MACHINES.

Application filed January 9, 1914.

To all whom it may concern:

Be it known that I, FRANK H. PIERPONT, a citizen of the United States,residing at Horley, county of Surrey, England, have invented certain newand useful improve ments in Low-Quad Mechanism for Type- Machines; and Ido hereby declare the following to be a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawings, forming part of this specification, and to the figures and letters of reference marked thereon.

This invention relates to type casting machines wherein a matrix is remombly applied to and clamped upon a mold furnished with a main and asupplementary mold blade, two mold blades, or other form of cut-offdevice whereby full size types or low quads or spaces can be produced atwill, and wherein the movements of the supplementary blade or cut-oifare controlled through the matrix-clamping mechanism, a variation in thetravel or movement of which is produced by special matrices or blanks inthe die-case. In mechanism of this class as hitherto constructed, partsat least of the op erating mechanism have been carried by the members ofthe matrix-clamping device, and as these parts are of considerableweight they .tend to interfere with the accurate movements of theclamping devices; further, as the time in which the movements of theblade should be effected is short, any tendency to delay isobjectionable as often the diecase is seated upon the mold and presseson the blades before the supplementary blade has been positioned.

It is the chief object of the present invention to overcome thesedrawbacks and to provide mechanism so contrived that while it iscontrolled from the matrix-clamping devices any part carried by oractuated by :1 member of the clamping devices is very light so as tooffer no appreciable resistance,

4 and the other parts are either carried upon fixed supports or arecarried by parts which will. not be adversely aifected by their weight.

According to the present invention, the supplementary blade which isindependent of the main blade is moved in both directions or has itsmovement controlled in both directions by an interponent which iscarried by an operating member of the matrixclamping mechanism and ispositioned rela tively to the operating member by the mem- Specificationof Letters Patent.

Patented Aug. it, 1916.

Serial No. s11,25o.

ber of the clamping mechanism the travel of which is varied by thepresentation of a spec al matrix or blank. The interponent acts in turnupon a rocking lever and in accordance with the position it has been setit rocks this lever in one or other direction to positively position thesupplementary blade. Preferably two such levers are employed which arecoupled with the moldblade, and the interponent, according to itsposition, rocks one or the other. The interponent is carried upon anextension of the operating lever for the matrix-clamping devices and isso light as to ofi'er little resistance to movement and when operatingupon the mold-blatie-shifting mechanism it is reinforced by the partcarrying it. The interponent is retained in one position by a spring andis shifted into the other position by a projection on the variablymovable member of the clamping devices when the travel of this member isinterfered with by the presentation of a special blank or matrix in thediecase.

Referring to the accompanying drawings illustrating a preferred form ofembodiment, Figure l is an elevation of mechanism according to thepresent invention applied to a machine having matrix-clamping mechanismor devices of known construction. Fig. 2 is an end elevation of Fig. 1.Fig. 3 is a plan of Fig. 1. Fig. i is a similar view to Fig. 2, butshowing the interponent in engagement with one of the actuators. Fig. 5is a similar view to Fig. i showing the interponent in engagement withthe other actuator, and Fig. 6 is a sectional view showing the mold andits main and supplemental blade or cutoff.

The invention is shown applied to a type casting and composing machinein accord ance with Patent No. 625,998, dated May 30, 1899 (BritishPatent No. 8638/99) and equipped with a mold having a divided mold-bladesuch for example as is referred to in Patent No. 828,450, dated August14, 1906 (British Patent No. 18231/06). It will suffice for the purposeof illustrating the invention to designate only the parts of the alreadyexisting mechanism shown.

1 is the mold furnished with side blocks between which the main blade 2and the supplementary blade 3 move to dimension the mold cavity andeffect the ejection of the type.

4 is the die-case which is movable to bring any matrix over the moldcavity.

5 is the crosshead to which the diecase supporting frame 6 is coupled.

7 is the intermediate slide or die case carrier.

8 is the die-case lever.

9 is the matrix-centering and clamping plunger.

10 is the main actuating or operating lever which is coupled through alink 11 with the lever 8 and with the centering plunger 9 through amovable head 12 and compression spring 13.

14: is a bridge supporting the die-case and centering plungermechanisms, and 15 is a slide carrying a cross pin 16 for reciprocatingthe main mold-blade.

The foregoing are elements of the commercial machines and are fullydisclosed in in the prior patents hereinbefore mentioned to whichreference may be had for a further description.

On an arm or extension 16 of the lever 10 is mounted an interponent 17which moves up and down in company with said arm and is also capable ofmovement relatively thereto in a horizontal direction. The interponentis very light in construction and is pivotally connected to the arm 16at 18;

it is held normally in one position by a spring 19. The arm 16 -isjointed to the lever 10 so that the latter can continue its necessarycentering movement to position securely the plunger after it has movedthe arm 16* to the necessary extent. As shown, the arm 16 is jointed at20 to the lever 10 and is formed with a bridge piece 21 having anadjustable stud 22 bearing against the top side of the lever, a spring23 being in terposed between the lower side of the lever 10 and the arm16*. At its outer end the arm 16 is extended laterally and provided withshoulders 24 which limit the throw of interponent 17, and the latter canbe made comparatively light and offer therefore comparatively littleresistance to movement by its actuating mechanism. Contiguous to theouter end of the interponent 17 are pivoted tw'o actuators 25, 26 whichare pivoted at 27 and 28 respectively to a stationary support. WVhen inone of its two possible positions the interponent 17 on moving down withthe arm 16 engages the actuator and turns it about its pivot, and whenin its other position, on moving down it engages and turns the actuator26. The means for moving the interponent consists of a projection 29 onthe head 30 carried by the centering pin and supporting the lower end ofthe compression spring.

When normal or full height type are to be cast, matrices presented havean opening for the reception of the centering pin such that the latterdescends far enough to keep the projection 29 at a lower level than theinterponent 17 the latter therefore is undisturbed and is held inposition by its con trolling spring. On descending with the arm 16 theinterponent 17 therefore engages the actuator 25 and moves it so that itturns a lever 31 about its pivot, and as the lever 31 engages thecut-off blade the latter is withdrawn to the same extent as the mainblade to dimension the mold for full size type. 7

When low quads or spaces are to be cast, a special matrix or blank,unprovided with a cavity for the centering pin, is presented. The normaltravel of the pin is therefore interrupted and the projection 29 engagesone end of the interponent 17 as the arm 16 descends past the projection29, whereby the interponentis moved againstthe action of its spring andengages the actuator 26.

helower end of this actuator engages the opposite side of the same endof the lever 31. as the actuator 25 so that when turningon its pivot itmoves the lever 31 in the opposite direction from that in whichtheactuator 25 moves it. Thus the actuator 26 prevents the cut-off sectionfrom moving back in company with the main blade, or if the cut-off hasbeen moved back at all under frictional contact with the main blade itmoves it forward and shortens the mold cavity. The position of thecut-off or supplementary blade in both directions is pivotallycontrolled by the mechanism accord ing to this invention. I V

The two actuators are preferably connected by a spring 32 to keep themin contact with the lever 31. In place of the two actuators a singleactuator centrally pivoted and having oppositely extending arms forengagement by the interponent and forked at its lower end to embrace theend of the lever 31, could be employed, but such is not advantageousowing to the extent of movement necessary to be given to the interponentto obtain the required leverage. Owing to the manner in which the partsare carried and in which they cooperate, the movements of the cut-oflblade are effected before the pressure of the die-case and the clampingmechanism come upon the mold.

Having now particularly described and v ascertained the nature of thesaid invention and in what manner the same is to be performed, I declarethat what I claim is 1. In a type casting machine the combination with am atrix-clamping mechanism embodying an operating member and a variablymovable member and a mold provided with a main blade and a cut-offsection of an interponent carried by and movable relatively to theoperating member for the matrixclamping mechanism and mechanism carriedby the variably movable member of the clamping mechanism to position theinterponent, an actuator coupled with the cut-oil? section andcooperating with the interponent to position the cutoff sectionsubstantially as described.

2. In a type casting machine furnished with a matrix-clamping mechanismhaving a variably movable member and a mold having a main and a cut-offsection, the combination with an operator for the clamping mechanism, ofan interponent yieldingly connected with the operator, of a projectioncarried by the variably movable member of the clamping mechanism andadapted when its travel is interrupted to move the interponentrelatively to the operator and 0perating means for the cut-off sectioncontrolled by the interponent substantially as and for the purposedescribed.

8. In a type casting machine furnished with a matrixclamping mechanismhaving a variably movable member and a mold furnished with a main and acut-off section, the combination with an operator 1() for the clampingmechanism, of an interponent carried by the operator, a projection onthe variably movable member 9, and two actuators separately pivoted tostationary sup ports and arranged to move a lever 81 that is connectedto the cut-0E section, substantially as described.

i. In a type casting machine, the combina tion with an actuator 10 of aninterponent pivotally and yieldingly coupled with the actuator and aprojection 29 carried by a variably movable member 30 of the clampingmechanism to move the interponent and two pivotally supported actuators25 and 26 with which the interponent is adapted to engage substantiallyas described.

5. In a type casting machine, the combination with a matrix clampingmechanism embodying an operating member and a variably movable memberand a mold provided with a sectional mold blade, of an interponentcarried by and movable relative to the operating member, meansintermediate the interponent and variably movable member for positioningthe interponent, and means intermediate the interponent and one of thesections of the blade for positioning the latter in accord with themovements of the interponent.

6. In a type casting machine, the combination with a matrix clampingmechanism embodying an operating member and a variably movable member,and a mold provided with a sectional mold blade, of an interponentoperated by the operating member with means whereby its position iscontrolled by the variably movable member, a pair of pivoted actuatorsmounted in position to cooperate with the interponent and adapted to beswung thereby in opposite directions, and a connection intermediate oneof the sections of the mold blade and actuators whereby said mold bladesection will be positioned in accord with the movements of the actuator.

7. In a type casting machine, the combination with a matrix clampingmechanism embodying an operating member and a variably movable memberand a mold provided with a sectional mold blade, of an interponentoperated by the operating member and positioned by the variably movablemember, a pair of actuators for one of the mold blade sections, andpositioned to cooperate with the interponent whereby the actuators willbe moved in one direction or the other in accord with the position ofthe interponent, and a spring for holding said actuators normally inoperative engagement with the mold blade,

section.

FRANK HINMAN PIERPONT. Witnesses R. lVEs'rAoorr, O. J. VVoR'rII.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner or. Patents,

' Washington, D. C.

